[MacPorts] #36004: root: error: token is not a valid binary operator in a preprocessor subexpression

[MacPorts]

#36004: root: error: token is not a valid binary operator in a preprocessor
subexpression
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 Reporter:  jfcaron@…            |       Owner:  mattiafrancescomoro@…        
     Type:  defect               |      Status:  new                          
 Priority:  Normal               |   Milestone:                               
Component:  ports                |     Version:  2.1.2                        
 Keywords:                       |        Port:  root                         
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Comment(by jonesc@…):

 The root port does not always fail to build. It works just fine for most
 people.

 Take a look at

 http://root.cern.ch/phpBB3/viewtopic.php?f=3&t=14614

 which I think describes your problem. Basically, my bet is your llvm
 version is too old. Follow the instructions to update your command line
 tools.

 Chris

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Ticket URL: <https://trac.macports.org/ticket/36004#comment:2>
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